E cigarettes are unregulated, health officials scrutinize use > Air Force Medical Service > News Former Smokers Who Quit Within the Past Year Are Four Times More Likely to be Daily Users of E Cigarettes Respiratory Therapy How to Switch to E Cigs : 7 Steps Instructables What are electronic cigarettes (e cigarettes)? Simple and Practical Mental Health E cigarettes Stress Lungs, Impair Protein Function News Release PNNL Predicting the pulmonary effects of long term e cigarette use: are the clouds clearing? European Respiratory Society